MX Logic, which sells its Email Defense Gateway system as a managed service to users in the enterprise, government and resellers, is now offering the Service Provider Edition as a software product to provide service providers such as ISPs and domain registrants an entry point into the secure content management market.

The companys Service Provider Edition provides message protection at the email gateway, so that spam and unwanted content and attachments are blocked, and viruses, worms and other email threats never enter a service provider's network or reach its end user customers.

Through a Web service API, the product can be integrated into customer provisioning applications, authenticated through subscriber Ldap directories, and can incorporate customer filtering policies. The product is designed for a distributed architecture with carrier-grade reliability.

Features of the Email Defense Gateway include: 24x7 messaging infrastructure attack protection; real time threat protection; outbound message filtering; policy-based email threat management; quarantine management; and support for virus scanning engines, including those from McAfee, Sophos and Trend Micro.

"We designed this as a service provider with development, test and operational experience," says Scott Chasin, CTO of MX Logic. "Service providers today are passing the threats onto their customers. We are providing them with a filter to put the quarantine in the cloud. We create a bulletproof DMZ for email."

MX Logic has signed up a regional Bell operating company but could not identify which one. Another customer is Tucows, the second largest domain registrant in the world.

MX Logic sells the software version of Email Defense Gateway with Spam Blocking to service providers at $1.50 to $2 per user per year for up to 250,000 licenses. The company offers volume discounts and contract terms of one to three years.